Stokes



2 Sheets-Sheet 1.

STOKES &. BROUGH.

PuddlnggfjFurnalce` Protector.

Pfented Aug. 4, 1868.

N. PETERS. PHOTO L TNDGRAFMER. WASNUGTON. Dv C,

' Sheets-Shet 2. STOKES 6L BROUGH.

I Puddlng- Furnace Protector. No. 80,578. Patented Aug. 4, 1888.

five-:Libra f N,PETERS. PHOTO-LIYHDGRAPMER, WASHINGTON. D.

1 @fuites tutes strut JOSEPH STOKES AND JOHN BBOUGIZI,v OF TRENTON, NEW JERSEY,

` Letters Patent No. 80,573, dated August 4, 1868.

tite .stimule referrer it it time trtit ttentanh unitingl tra at tige tante.

TO ALL WHOM IT MY OONGERN:

4Be it known lthat we, JOSEPH STORES andf JOHN BROUGIL of Trenton, in the State of New Jersey, have invented a new and useful Improvement in the Construction of Water-Boshes for `Paddling-Furnaees; and we do hereby declare that the following is afull, clear, and exact description thereof, reference being had to the accompanying drawings, making partof this specification, in whieh- Figure 1 is a plan. v

Figure 2, an elevation with part in section, taken at the line A a of iig. 1.

Figure 3, a section taken at the line B I; of iig. 1, and

' Figures 4 and 5, separate views of the discharging part 4of the furnace.

The same letters indicate like parts in all the gures.

The nature of our invention 4consists in constructing paddling-furnaces with a hollow bosh `in one or more parts, of such form and-construction that a current of water may be maintained within lthe bosh, through, under, and around the bottom of the furnace, or any part of the bottom thereof, in connection with or inde` pendent of a current ofV water. withinfand around the bridge or bridges and jambs ofthe furnace.

We are aware that water-boshes have been heretofore used, but they have been so constructed as to protectl imperfectly only the furnace-bridges and jambe; but the peculiar advantage of our improvement is such that while the bridges and jambs of the furnace are protected as heretofore, and prevented-from being wasted and destroyed bythe heat, an equal and eihcient protection is aiiorded to the bottom of the furnace, and especially' to the lower part of the fettling or lining of the bridges and jambs by the cooling agency of the current of water maintained within the bosh, under and around the rbottoni of the furnace.

In puddling-furnaces heretofore in use, a large amount of iron ore of the-best quality has been employed,

at considerable expense, for fettling` orlinng the bridges and jambs.

To avoid this expense, the ordinary iron water-.boshfhas been introduced without lining, but the .excessive cooling effect produced thereby uponr the iron introduced to be puddled, has been found to be unfavorable for theV production of a good quality of iron, and often "a rapid wasteland destruction of the material of the bosh have occurred. m l

If, to avoid this excessive and unfavorablecooling effect, the usual lining be used upon the surface of the bosh exposed to the iron to be puddled, no advantage is gained o ver the usual brick bridge; but, by the use of our improvement, by means of which a current of water is maintained within the'bosh, as alreadyspeciedfa thinner fe'ttling or lining may be employed in and upon the bridge and jambs of the furnace, without the rapid waste and destruction of the materials used for fettling or lining, that have heretofore taken place in consequencc of the effect of the heat, and the chemical and mechanical action of the melted iron and -cinden i The following advantages result fromA the use of this improvement:

First, the size ofthe furnace may be considerably reduced, as the usual thick fettlingis dispensed with, andl the cost of material and labor in erection is thereby lessened.

Second,`the size of fire-grate may be diminished, and a saving of fuel eiected.

Third, a thinner fettling, at less expense, maybe employed, with equally favorable results in the yield ofiron.

Fourth, the rapid waste and destruction ofthe substances used for fettling or lining, by the action of the heat and of the melted iron and cinder, are prevented by the'protecting action of the current of water circulating in the furnace-bottom within the bosh, as already specified, this protection being a'orded particularly at the lower part of the fettling or lining, which has been heretofore least protected, and 4much exposed to wast-e and destructive action. I

' In the accompanying drawings,a represents the paddling-bottom, b the hollow bridge, and c the boshes, y

which are hollow, as represented at d, the hollow part extending some distance under the bottom, so as to afford protection at and along thejunction of the bosheswith the. bottomwhere the fettling is most exposed to the destructive action of the heat and cinder.

Suitable pipes are provided for the introductionnd discharge of water, which should be caused to circulate through the hollow Aparts when the furnace is in action. The hollow parts muy be mede continuous or in sections, but if made in sections, each section shouldb provided with an induction and an eduction-pipe.

It is deemed unnecessary to explain the construction of the bridge and other parts of a, puddling-furnace,

as that is well lrnown to iron-masters.

The hollow of the boshes maybe extended under the entire bottom, if desired, but we prefer to4 extend itl no further than represented in the accompanying/drawings.

What we claim as our invention, and desire to secu/re by Letters Patent, as unimprovement in puddlingfurnaces, is v v 4 Meking'the boshes hollow, and the-hollow `to vextend 'under the bottom for the passage of a. current of water, substantially as and-for the purpose set forth. v

JOSEPH STOKES,

i mark. Wltnesses:

FRED'. J. S'Lnmg, JOSEPH R.. SWEENY. 

